• English / United States: Jessie's Wobbuffet
• Japanese / Japan: ムサシのソーナンス
• Japanese (Romanized) / Japan: Musashi no Sonansu
• Japanese (TL) / Japan: Musashi's Sonansu

While Wobbuffet is technically Jessie's Pokémon, it has been around so long that it has become a main character, appearing in almost every episode of the series since it debut.

Jessie's Wobbuffet rarely battles but when he does, his Counter and Mirror Coat moves have proved to be very effective. Unfortunately, Jessie's tactics aren't always sufficient to master Jessie's Wobbuffet's superior defensive skills.

Jessie's Wobbuffet also randomly comes out of his Pokeball, especially during the Team Rocket motto. He is also seen blasting off with Jessie regardless if he was actually part of the action.

Trade meet in Leaf Town

Jessie's Wobbuffet was first seen walking around with Benny, his previous trainer. While looking for trade partners, Ash Ketchum called Benny's Wobbuffet "the greatest Sonansu in the world!" and a really obedient and nice Pokémon. Ash Ketchum and his friends managed to convince an Odoshishi Trainer but just as they were about to trade, the Odoshishi Trainer decided that he wanted a flying Pokémon instead. Jessie landed near the official trade station after James and the Magikarp Salesman came running through. Benny wanted to trade his Wobbuffet for a stronger Pokémon but Jessie accidentally traded her Lickitung for Benny's Wobbuffet after her Poké ball fell out of her pocket and onto the machine and she picked up the wrong Poké ball.

Click here to see info on Benny's Wobbuffet.

In the Top 16 round of the Alola League, Jessie's Wobbuffet faced off against James's Mareanie. The match was planned to be setup for Jessie to win but half way through the match, Mareanie decided that it wanted to battle for real and it fired up James and they were able to defeat Wobbuffet's defense to advance to the next round.